This still needs work to make it look better, and be able to use it with the "motion" control module.

Correctly count the children of a node. The previous code counted the endpoints too, which gave a too high children count.

(needs backporting)

Don't use dl_open on win32
Both patches by Tim Schuerewege. thanks.

* modules/gui/qt4/qt4.cpp: lower the priority of the QT4 dialogs provider so the skins interface is usable again.

Fix MacOS X black screens and play as background options. These are 'window level' options and as such should not use p_real_vout, because that's just for options shared by the opengl and the quickdraw renderer

supportinfo: use static IIDs as previous method wouldn't work in a multithreaded environment

* modules/codec/x264.c: H.264 level options patch by Ilkka Ollakka <ilkka dot ollakka a t oamk dot fi>. add options aud, sps-id. deprecate options analyse and filter for partitions and deblock.

* modules/demux/mpeg/mpga.c: oups, no need to free p_sys->p_block_in as it is freed by the packetizer.

- added missing video.toggleFullscreen() API